Dust collector



(No Model.)

. 2 SheetsSheet 1. -J. F. GENT. DUST GOLLEGTOR.

110 531414. Patented Dec. 25, 1894.

mm 1 w 1 Q 3 Q 1 Q Z w:

(No Model.) 2 Sheets-Sh eet 2.

J. P. GENT!- DUST UO LLEGTO- R. No. 531,414,, Patented Dec. 25; 18 94.

UNITED STATEs PATENT OFF CE.

JOSEPH F. GENT; or ee nulvisus, INDIANA.

DIU ST- GO LL E CTO R.

SPECIFICATION forming part f Letters Patent Nessa-.414, dated December 25, 1894.

Application fil ed September 19,- 1894. serial messes (it) model.)

To all whom it mag concern.-

Be it known that I, JOSEPH F. Gnnrea citibus, in the county of Bartholomew and State of Indiana, have invented certain" new and useful Improvemen'ts'in Dust-eoliectersg' and I do hereby declare the following to be a full,

clear, and exact description of the invention, such as will enable others skilled in the art to collectors and consists in the novel features" of construction and combination'of parts here inafter fully described, reference being. had to the accompanying drawings, which illustrate one form in which I have contemplatedenrbodying my invention and said invention is fully. disclosed in the following description and claims.

Referring to the said drawings: Figure 1 is lector. Fig. 2 is a top plan view of the nia= chine drawn to a reducediscale with the top plate removed. Fig. 3 is a plan view of the bottom plate of the machine. Fig; 4 is adetail view. showing the rack and pinions for driving the cleaning brushes.

In the drawingsfA represents the bed upon. which the machine rests anda' or represent posts or columns which support the bottom plate B of the machine. This bottom plate'is' preferably of circular form and is providedwith a raised central portion 6 circular in form as shown in Figs. 1 and 3. The-said bottom plate is also provided with an annuannular grooveor recess I) between said.

. flange and the circular raised portion b. I

said parts being rigidly united by suitablebolts so as to form a-rigid frame.

I' prefer to employ bolts 0 passingv through tubular sleeves or collars c" aslshown in Fig.

1'. which hold the parts the desired? distance:

apart and at the same-'time-connect them rig- 5 idly together. 'lheaunularbase plate is provided with a series of holes 0 preferably cirzen of the United States, residing; at Gelum- .5

cular in form which open into--cylindrical "dustehambers (3 formed preferably of cloth orwiife gauze of suitable firmness secured to j the inner edges of said holes and to the top plate O'which closes them at the top. I have I shown the drum provided with twelve of these dust chanib'ers but a'greater or less number which it appertains to make and. use the same.

My invention is an improvement ind'n'st may be employed if preferred.

vertical shaft D mounted in a step bearing (2 supported by a spider or bracket at the bottom of the chamber and in a bearing in the top; plate 0 and said shaft D carries a series 5 of brushes preferablyfou'r (see Fig. 2) which are adapted to" engage the walls of dust chamb er andibrush the dust therefrom. The shafts D extend above the top plate 0 and are pro- 2 titled with piniofns' d.

a sectional view of my" improved dust eol- The bottom plate Bis provided with a slot B which is slightly narrower than the annu- 1 lar, recess b of said plate and extends nearly two thirds'of the way around said recess as f shown in Fig. 3 and a second slot B similar to the slot B" is formed in said annular recessbut of less extent leaving solid portions .101" bridges b between the adjacent ends of s'aidslot's'B' and B In practiceI prefer to form the slot B of such extent as to allow 1 three of the dust chambers to be above it at atinie, the solid portions b b each being of slightly greater width than a single dust chambenleaving the remaining, dust chambers' above the slot B. lar flange 1) around its outer edge formingjan f Adjacent to the slotB 'I provide the bottom plate B" with an exterior wall or casing B whichls'upports at its upper edge a rack .b secured thereto by bracket arms b in position to engage the pinions d of the brush shafts D (see Figs. 1 and 4) as the drumcarryi-ngthedust chambers is rotated. The first one or two teeth of this rack are slightly shorter than the others in order to enable the pinionsto come intomesh therewith without jar or strain.

E represents the central shaft of the drum,

; secured rigidly to thetop-plate C'and mounted in: bearing in thebottom plate B and'a step bearing in. the bedA of the -n'1"a.chine. M0

tion maybe imparted to thedrum in any dosired way. In this instance I have shown a counter shaft F provided with astepped driving pulleyfand a bevel pinion f engaging a similar pinion on the shaft E as shown in Figs. 1 and 3, the stepped or cone driving pulley enabling the operator to drive the drum at any desired speed. Beneath the slot 13 of the bottom plate B is a dust receiving or discharging hopper G into which the dust from the dust chamber is deposited, and conveyed to any suitable point. Beneath and communicating with the slot B is an air receiving hopper H from which the heavier particles of foreign matter may be conveyed to any desired point. Communicating with the hopper H, is a pipe 7.", which leads from an air forcing device or blower K and discharges preferably horizontally into said hopper. A pipe K conducts the air to be cleansed from dust and foreign materials into the fan or blower K. p

In order to prevent the escape of air around the circular base plate 0 of the drum, the lower side and vertical edges of said plate are covered with sheep skin, or other packing material as indicated at 0* Fig. 1.

The operation of my improved dust collector is as follows: When the blower K is in operation the air laden with dust and foreign matter is discharged from pipe is horizontally into the hopper H or substantially at right angles to the axis of the dust chambers C and the heavier particles of foreign matter ,will drop at once into the hopper and be carried ofi. The air then passes upward into all of the dust chambers situated above the slot B with which the hopper I-I communicates and escapes through the cloth or wire sides of the dust chambers leaving the dust on the inner sides of the walls of said chambers. The operation of the shaft E will cause the drum carrying the dust chambers to revolve and bring one after another of said dust chambers above the slot B, when the pinion d of the brush shaft D of each chamber will be instantly engaged by the rack'b and cause the rotation of the brushes which will brush the dust from the cloth walls and cause it to fall into the hopper G, from whence it is conducted away. The cleaning of the chambers continues while each chamber traverses the entire length of the slot B, three of said chambers being above said slot at a time asbefore stated. The operation is thus continuous, and the drum will be driven at a greateror less speed according to the air to be cleaned from dust. The more dust there is in the air being cleaned, the more rapidly will it be necessary to rotate the drum. The object of the bridges b b is to prevent the air from passing from the receiving hopper H to the discharging hopper G which would prevent the dust from settling in the receiving hopper. The sides of the annular base plate of the drum and the bottom of said plate be. tween the openings being covered with sheep skin or other suitable packing, no air will be permitted topass under the drum from one hopper to the other. I may also cover the bridges b b with packing if found desirable.

It will thus be seen that each of the dust chambers as it passes onto one of the bridges b has the blast therethrough cut off entirely so that it can have the dust contained therein discharged into the hopper G. As soon asa dust chamber passes over the other bridge I) it is again exposed to the blast from the hopper H but as each bridge is of greater width than one of the blast chambers, each chamber has itscommunicationwith the dust receiving hopper cut off by passing onto the bridge before it can again come into communication with the hopper H.

What I claim, and desire to secure by Letters Patent, is-

1. In a dust collector the combination with the horizontally revoluble drum carrying a series of dust chambers, of a receiving hopper having a discharge opening at its lower end, located beneath said drum and communicating with one or more of said dust chambers, an inlet pipe discharging horizontally into said hopper, a discharging hopper separate from the receiving hopper located beneath said drum, revoluble brushes in said dust chamber, means for moving said dust chambers successively from the receiving hopper over the discharging hopper and means for rotating said brushes while the dust chambers are above said discharging hopper, substantially as described.

2. In a dust collector the combination with the horizontal revoluble drum carrying a series of dust chambers open at their lower ends, a rotary brush located in each of said chambers for engaging the walls thereof and provided with an operating pinion, a receiving hopper, an inlet pipe discharging into said hopper perpendicularly to the axes of said dust chambers, a discharging hopper, a rack supported adjacent to said receiving hopper in position to engage all the pinions of the brush shafts of said dust chambers, substantially as described.

3. Ina dust collector, the combination with the bottom plate provided with an annular re- ,cess, an aperture communicating with the air 'inlet and an aperture communicating with the dust discharge hopper, of a horizontally 'Erevoluble drum having a portion engaging .said annular recess and provided with aseries of dust chambers open at their lower ends, revoluble brushes located in said dust chamibers and provided with operating pinions and ,a rack rigidly supported adjacent to the dust ireceiving hopper and adapted to engage the lpinions of said brushes, substantially as de- ,scribed.

f 4. In a dust collector, the combination with lthe bottom plate provided with an annular re icess, an elongated slot communicating with tithe receiving hopper and an elongated slot IIO communicating with the dust discharging hopper, of a horizontal revoluble drum hav-' ing a portion engaging said annular recess and carrying a series of dust chambers open at their lower ends, revoluble brushes in said dust chambers provided with operating pinions, an air receiving hopper located beneath said bottom plate an air inlet pipe and an air forcing device discharging into said hopper horizontally, a dust receiving hopper located beneath said bottom plate and a rack supported from said bottom plate in position to engage said brush operating pinions, substantially as described; 1

5. In a dust collector the combination with the stationary bottom plateprovided with an opening communicating with an air blastand an opening communicating with a receiving hopper, of a revolving drum locatediabove said plate and carrying a series of. dust chambers open at their lower ends, said openings being adapted to pass over the openings of said stationary plate, said plate having solid portions or bridges between said openings of greater Width than one of said blast chambers to prevent air from passing from said air inlet to said receiving hopper, substantially as described.

6. In a dust collector the combination with the stationary bottom plate provided with two slots, of a revolving drum provided with a series of dust chambers open at one end, said open ends being adapted to pass over said slots and bridges, a receiving hopper located beneath one of said slots, an air blast connected therewith and a discharging hopper located beneath the other of said slots, said bottom plate being provided with solid portions or bridges of greater width than one of said dust chambers, between the adjacent ends of said slots and said drum having an air tight packing engaging said bridges to prevent the air from passing from the blast pipe into said discharging hopper,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOSEPH F. GENT.

Witnesses:

, L. P. WHITAKER, J. D. KINGSBERY. 

